Galva, IL 61434 Frost Dates
When can you plant in Galva, IL?
Around 04/28 is the usual last spring frost, about 243 days away. The first fall frost typically arrives around 10/12, about 165 frost-free days later.
The USDA Plant Hardiness Zone Map puts Galva in Zone 5b (-15 to -10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 6 weeks of growing season left in Galva before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Galva compares
Galva's growing season runs about 165 days, ranking 30,596 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 1,487 of 1,548.
Learn more
the frost range covers how to read the range around Galva's dates instead of trusting one. local microclimates covers what one yard in Galva can differ from the 61434 normal.